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.TH CATGETS 3C "Mar 22, 2002"
.SH NAME
catgets \- read a program message
.SH SYNOPSIS
.LP
.nf
#include <nl_types.h>

\fBchar *\fR\fBcatgets\fR(\fBnl_catd\fR \fIcatd\fR, \fBint\fR \fIset_num\fR, \fBint\fR \fImsg_num\fR, \fBconst char *\fR\fIs\fR);
.fi

.SH DESCRIPTION
.sp
.LP
The \fBcatgets()\fR function attempts to read message \fImsg_num\fR, in set
\fIset_num\fR, from the message catalog identified by  \fIcatd\fR. The
\fIcatd\fR argument is a catalog descriptor returned from an earlier call to
\fBcatopen()\fR. The \fIs\fR argument points to a default message string which
will be returned by  \fBcatgets()\fR if the identified message catalog is not
currently available.
.SH RETURN VALUES
.sp
.LP
If the identified message is retrieved successfully,  \fBcatgets()\fR returns a
pointer to an internal buffer area containing the  null terminated message
string. If the call is unsuccessful for any reason, \fBcatgets()\fR returns a
pointer to \fIs\fR and \fBerrno\fR may be set to indicate the error.
.SH ERRORS
.sp
.LP
The \fBcatgets()\fR function may fail if:
.sp
.ne 2
.na
\fB\fBEBADF\fR\fR
.ad
.RS 11n
The \fIcatd\fR argument is not a valid message catalogue descriptor open for
reading.
.RE

.sp
.ne 2
.na
\fB\fBEBADMSG\fR\fR
.ad
.RS 11n
The number of \fB%n\fR specifiers that appear in the message string specified
by \fIs\fR does not match the number of \fB%n\fR specifiers that appear in the
message identified by \fIset_id\fR and \fImsg_id\fR in the specified message
catalog.
.RE

.sp
.ne 2
.na
\fB\fBEINTR\fR\fR
.ad
.RS 11n
The read operation was terminated due to the receipt of a signal, and no data
was transferred.
.RE

.sp
.ne 2
.na
\fB\fBEINVAL\fR\fR
.ad
.RS 11n
The message catalog identified by \fIcatd\fR is corrupted.
.RE

.sp
.ne 2
.na
\fB\fBENOMSG\fR\fR
.ad
.RS 11n
The message identified by \fIset_id\fR and \fImsg_id\fR is not in the message
catalog.
.RE

.SH USAGE
.sp
.LP
The \fBcatgets()\fR function can be used safely in multithreaded applications
as long as \fBsetlocale\fR(3C) is not being called to change the locale.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(7) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
_
Interface Stability	Standard
_
MT-Level	MT-Safe
.TE

.SH SEE ALSO
.sp
.LP
.BR gencat (1),
.BR catclose (3C),
.BR catopen (3C),
.BR gettext (3C),
.BR setlocale (3C),
.BR attributes (7),
.BR standards (7)
.sp
.LP
\fIInternational Language Environments Guide\fR
